This manual covers the R80GS and R100GS models from 1989, renowned dual-sport motorcycles that pioneered the adventure touring segment. These robust machines feature air-cooled boxer twin engines, shaft drive, and capable suspension systems, with the R100GS notably incorporating the Monolever rear suspension. Built upon a heritage of reliability and engineering, these motorcycles were designed for both on-road touring and off-road exploration, offering a blend of performance and durability.

This workshop service and repair manual provides comprehensive guidance for maintaining and repairing your R80GS or R100GS. It details engine, transmission, chassis, brakes, and electrical systems, including procedures for disassembly, assembly, troubleshooting, and routine maintenance. With in-depth coverage and specific technical data, this manual is an essential resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of these iconic adventure motorcycles.